There is a special trick to the 우 verbs. Here is a video where Rob Julien explains.
I just think of it as the amazing disappearing ㅂ.
Let’s look at the verb 춥다 to be cold. Where did the ㅂ go to in present tense common conjugation 추워요 ? Turns out, in this case you drop the ㅂ and it becomes 추우.
So, for 춥다 you have 추운. The descriptive verb “to be cold” becomes a noun modifier (adjective) 추운. The imperative is 추우세요. This holds true for other similar verbs like 덥다 and 맵다.